Electric-controlled metasurface antenna array with ultra-wideband frequency reconfigurable reflection suppression

The electric-controlled metasurface antenna array(ECMSAA)with ultra-wideband frequency reconfigurable reflec-tion suppression is proposed and realized.Firstly,an electric-controlled metasurface with ultra-wideband frequency reconfi-gurable in-phase reflection characteristics is designed.The ele-ment of the ECMSAA is constructed by loading the single elec-tric-controlled metasurface unit on the conventional patch antenna element.The radiation properties of the conventional patch antenna and the reflection performance of electric-con-trolled metasurface are maintained when the antenna and the metasurface are integrated.Thus,the ECMSAA elements have excellent radiation properties and ultra-wideband frequency reconfigurable in-phase reflection characteristics simultaneously.To take a further step,a 6×10 ECMSAA is realized based on the designed metasurface antenna element.Simulated and mea-sured results prove that the reflection of the ECMSAA is dynami-cally suppressed in the P and L bands.Meanwhile,high-gain and multi-polarization radiation properties of the ECMSAA are achieved.This design method not only realizes the frequency reconfigurable reflection suppression of the antenna array in the ultra-wide frequency band but also provides a way to develop an intelligent low-scattering antenna.